An iPhone with Night Shift on. Alex Heath / Tech Insider Apple isn't the first organisation to come up with this idea, of course. There's a third-party app called F.lux that does the same thing, and was actually shut down by Apple on iOS before it launched Night Shift for the first time.

F.lux is also already available for macOS, and I currently use it. It's pretty good! Even if the white glow doesn't disrupt your sleep, it's still much more pleasant to use an orange-tinted screen late at night (although it does look a little strange at first).

If you're watching a film or editing photos you can easily turn it off, but for casual use and reading, it's much less harsh on the eyes.

It's not clear how Night Shift for macOS will differ from F.lux — but I'll definitely be giving it a go.